hi fellow coders,
i have wondered for a long time, is it possible to make a meter to measure voltage and amps and maybe even ohmage using a uc. i think it would be a cool project.
do you think it would work? i know it would probebbly be very difficult but think it can sell if we make it good. i have already found friend who can draw a circuit. i am probably the best you can see at writing code. but i dont want to start if it cannot be done.
plz give advice quick. i want to make a report of a project very soon.
"do you think it would work?"
Of yourse it will - if you are good enough.
If you are the best we will ever see at writing code, then this should be an easy project.
Current is just the voltage through a shunt resistor. But the shunt resistor has a very low resistance, so the voltage is quite low.
For resistance you either have a constant voltage and measure the current, or a constant current and measure the voltage.
Most digital multi meters Are done this way. The accuracy and stability are the key if you want to sell it.
Mister Nerson,
I think this is a very interesting idea and I want to help you. You must consider the possibility of getting the idea patented. Do you know anyone with experience of international patent procedures?
I am not aware of any such existing patents so we must be quick to get the applications sorted quickly. However, you must realize that these procedures often incur large costs.
The most dangerous possibility is for someone to claim that this is not an patentable idea or that an existing patent covers the idea in an loose manner.
I am currently investigating the possibility of suing Intel, Microsoft and IBM for various aspects of computing technology they have employed.
Give me your email address and we can discuss this more privately.
"think it can sell if we make it good"
What would be its USP; ie, it Unique Selling Point?
In other words, why do you think people would want to buy this rather than any of the very many other multimeters already available on the market?
What would be patentable about it?
Who is going to give away patentable ideas - for free - in a public, online forum...?!
Well, maybe because he does not realize that just about any multimeter you can get your hands on nowadays contains at least one microcontroller...
you're kidding, right?
"you're kidding, right?"
My attempt at irony obviously failed!
Matt, You wrote a rather elaborate post, so I really thought your were serious! I hope you don't mind me saying, it sounded a bit like one of these Nigerian bank fraud emails that I sometimes receive. I sometimes reply: "Great idea! exciting! will we meet face to face to close a deal?". they never agree :) :)
"[...] it sounded a bit like one of these Nigerian bank fraud emails that I sometimes receive."
Yes it did, which was why I assumed it to be a joke. Especially since a microcontroller-based multimeter isn't exactly uncommon :)
Tamir,
Well, I don't consider myself a spammer.
Just that my intolerance of posts like the OPs is growing.
Self proclaimed brilliance just plain annoys me:
"i am probably the best you can see at writing code"
Matt, I am not the only one that fell for your charms :) :) (Andy Neil...? :) ). Having a good laugh from time to time serves as a fine comic relief...
"I sometimes reply: 'Great idea! exciting! will we meet face to face to close a deal?'"
That is a really Bad Idea!
These mails are just sent out in bulk to random addresses - by replying, you have confirmed to them that your email address is "live"
Also, these fraudster can be serious criminals - you should certainly not be getting involved yourself in any way at all! If you feel the need to do something about it, then contact your local law enforcement; eg: www.met.police.uk/.../419.htm
Unfortunately, there are also too many posts like that which are in all seriousness!
Andy, I am really touched by your concern. I'd never ever go meet Nigerian fraudsters or any fraudsters for this matter, so don't worry. So I say: Let them spam this forum. We will strike back by our (very) sharp tongues!